Home / Standards / GB/T 30569-2014 GB/T 30569-2014 Active Structural design specification for precision cold forging of straight bevel gear 直齿锥齿轮精密冷锻件 结构设计规范 Standard Type GBT ICS 77.140.85 CCS J32 Status 现行 Issue Date 2014-05-06 Implementation 2014-12-01 Responsible Dept 国家标准委 Drafting Unit N/A